{"id":"SUSE-SU-2026:4615-1","summary":"Security update for expat","details":"This update for expat fixes the following issues:\n\n- CVE-2025-59375: denial of service (resource consumption) caused by processing malformed small documents (bsc#1249584).\n- CVE-2026-24515: NULL dereference (CWE-476) due to function XML_ExternalEntityParserCreate() failing to copy the\n  encoding handler data passed to XML_SetUnknownEncodingHandler() from the parent to the subparser (bsc#1257144).\n- CVE-2026-25210: lack of buffer size check can lead to an integer overflow (bsc#1257496).\n- CVE-2026-32776: NULL pointer dereference when processing empty external parameter entities inside an entity\n  declaration value (bsc#1259726).\n- CVE-2026-32777: denial of service due to infinite loop in DTD content parsing (bsc#1259711).\n- CVE-2026-32778: NULL pointer dereference in `setContext` on retry after an out-of-memory condition\n  (bsc#1259729).\n- CVE-2026-41080: crafted XML document can cause a denial of service (bsc#1262263).\n- CVE-2026-45186: denial of service via moderately sized crafted XML input (bsc#1264713).\n- CVE-2026-50219: lack of handler call depth tracking for calls to XML_* functions from within handlers in cases of a\n  policy violation (bsc#1267631).\n- CVE-2026-56131: lack of handler call depth tracking for calls to XML_ResumeParser from within\n  handlers in cases of a policy violation (bsc#1268572).\n- CVE-2026-56132: heap-based buffer overflow in doProlog in xmlparse.c (bsc#1268573).\n- CVE-2026-56403,CVE-2026-56404,CVE-2026-56405,CVE-2026-56406,\n  CVE-2026-56407,CVE-2026-56408,CVE-2026-56409,CVE-2026-56410,\n  CVE-2026-56411,CVE-2026-56412: multiple integer overflow vulnerabilities (bsc#1275115).\n- CVE-2026-66046: denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts()\n  function (bsc#1275732).\n- CVE-2026-72522: out-of-bounds read and resultant infinite loop due to low surrogates being treated the same\n  as high surrogates during Unicode processing (bsc#1275594).\n- CVE-2026-76641: out-of-bounds read vulnerability that allows attackers to trigger\n  memory corruption (bsc#1275915).\n- CVE-2026-76956: denial of service via hash flooding attacks (bsc#1275860).\n- CVE-2026-76957: lack of handler call depth tracking with custom encoding callbacks. Thus, a use-\n  after-free can occur (bsc#1275859).\n- CVE-2026-77214: out-of-bounds read due to insufficient checks in `XML_ParseBuffer()` (bsc#1284334).\n- CVE-2026-93990: fails to validate low surrogates following high surrogates in UTF-16 input (bsc#1282347).\n- CVE-2026-102633: Denial of Service via integer overflow in expat_realloc (bsc#1283493).\n\nUpdate to 2.8.5 (jsc#PED-16154):\n\t\n * Bug fixes:\n * Fix an OOM-related memory leak on a failed overflow check\n * Fix memory alignment for architectures with 128bit pointers\n * Mark XML_SetHashSalt deprecated\n * CMake: only add /source-charset:utf-8 when /utf-8 is not present\n * lib: resolve undefined behavior from overshifting a signed int\n * lib: support read-only hash table lookup with non-zero-terminated\n keys\n * lib: use a C99 bool for ENTITY.open\n * version info bumped from 13:3:12 to 13:4:12\n * fix support for 2+ GiB documents (regression from 2.8.2)\n * reject empty version in the XML declaration\n * fix printf format for AIX\n * CMake|AIX: enable EXPAT_DEV_URANDOM by default\n * version info bumped from 13:2:12 to 13:3:12\n * Existing API function XML_SetHashSalt is now deprecated\n * because of its limitations, and its use should be\n * considered a vulnerability. Please either use the new API\n * function XML_SetHashSalt16Bytes (with known-high-quality\n * entropy input only!) instead, or leave the derivation of\n * a 16-bytes hash salt from high quality entropy to Expat's\n * internal machinery (by *not* calling either of the two\n * XML_SetHashSalt* functions).\n * xmlwf: Fix a memory leak\n * WASI: Fix format specifiers for 32bit WASI SDK\n * Fix alignment of internal allocations for some non-amd64\n architectures (e.g. sparc32); fixes up on the fix to\n CVE-2025-59375 (of Expat 2.7.2)\n * Fix a class of false positives where input should have been\n rejected with error XML_ERROR_ASYNC_ENTITY; regression from\n CVE-2024-8176 (of Expat 2.7.0)\n * Prove and regression-proof absence of integer overflow\n from function expat_realloc\n * Remove 'harmless' cast that truncated a size_t to unsigned\n * xmlwf: Resolve use of functions XML_GetErrorLineNumber\n and XML_GetErrorColumnNumber\n * CVE-2025-59375 -- Disallow use of disproportional amounts of\n dynamic memory from within an Expat parser\n * xmlwf: Fix (internal) help generator\n * xmlwf: Mention supported environment variables in\n","modified":"2026-10-13T10:30:04.873577795Z","published":"2026-10-12T07:20:23Z","related":["CVE-2016-0718","CVE-2016-9063","CVE-2022-43680","CVE-2023-52425","CVE-2024-8176","CVE-2025-59375","CVE-2026-102633","CVE-2026-24515","CVE-2026-25210","CVE-2026-32776","CVE-2026-32777","CVE-2026-32778","CVE-2026-41080","CVE-2026-45186","CVE-2026-50219","CVE-2026-56131","CVE-2026-56132","CVE-2026-56403","CVE-2026-56404","CVE-2026-56405","CVE-2026-56406","CVE-2026-56407","CVE-2026-56408","CVE-2026-56409","CVE-2026-56410","CVE-2026-56411","CVE-2026-56412","CVE-2026-66046","CVE-2026-72522","CVE-2026-76641","CVE-2026-76956","CVE-2026-76957","CVE-2026-77214","CVE-2026-93990"],"upstream":["CVE-2016-0718","CVE-2016-9063","CVE-2022-43680","CVE-2023-52425","CVE-2024-8176","CVE-2025-59375","CVE-2026-102633","CVE-2026-24515","CVE-2026-25210","CVE-2026-32776","CVE-2026-32777","CVE-2026-32778","CVE-2026-41080","CVE-2026-45186","CVE-2026-50219","CVE-2026-56131","CVE-2026-56132","CVE-2026-56403","CVE-2026-56404","CVE-2026-56405","CVE-2026-56406","CVE-2026-56407","CVE-2026-56408","CVE-2026-56409","CVE-2026-56410","CVE-2026-56411","CVE-2026-56412","CVE-2026-66046","CVE-2026-72522","CVE-2026-76641","CVE-2026-76956","CVE-2026-76957","CVE-2026-77214","CVE-2026-93990"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264615-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1249584"},{"type":"REPORT","url":"https://bugzilla.suse.com/1257144"},{"type":"REPORT","url":"https://bugzilla.suse.com/1257496"},{"type":"REPORT","url":"https://bugzilla.suse.com/1259711"},{"type":"REPORT","url":"https://bugzilla.suse.com/1259726"},{"type":"REPORT","url":"https://bugzilla.suse.com/1259729"},{"type":"REPORT","url":"https://bugzilla.suse.com/1262263"},{"type":"REPORT","url":"https://bugzilla.suse.com/1264713"},{"type":"REPORT","url":"https://bugzilla.suse.com/1267631"},{"type":"REPORT","url":"https://bugzilla.suse.com/1268572"},{"type":"REPORT","url":"https://bugzilla.suse.com/1268573"},{"type":"REPORT","url":"https://bugzilla.suse.com/1275115"},{"type":"REPORT","url":"https://bugzilla.suse.com/1275594"},{"type":"REPORT","url":"https://bugzilla.suse.com/1275732"},{"type":"REPORT","url":"https://bugzilla.suse.com/1275859"},{"type":"REPORT","url":"https://bugzilla.suse.com/1275860"},{"type":"REPORT","url":"https://bugzilla.suse.com/1275915"},{"type":"REPORT","url":"https://bugzilla.suse.com/1282347"},{"type":"REPORT","url":"https://bugzilla.suse.com/1283493"},{"type":"REPORT","url":"https://bugzilla.suse.com/1284334"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2016-0718"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2016-9063"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2022-43680"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2023-52425"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2024-8176"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-59375"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-102633"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-24515"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-25210"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-32776"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-32777"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-32778"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-41080"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-45186"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-50219"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56131"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56132"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56403"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56404"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56405"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56406"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56407"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56408"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56409"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56410"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56411"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-56412"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-66046"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-72522"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-76641"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-76956"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-76957"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-77214"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-93990"}],"affected":[{"package":{"name":"expat","ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","purl":"pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.5-21.55.1"}]}],"ecosystem_specific":{"binaries":[{"libexpat-devel":"2.8.5-21.55.1","libexpat1":"2.8.5-21.55.1","libexpat1-32bit":"2.8.5-21.55.1","expat":"2.8.5-21.55.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4615-1.json"}},{"package":{"name":"expat","ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","purl":"pkg:rpm/suse/expat&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.5-21.55.1"}]}],"ecosystem_specific":{"binaries":[{"libexpat-devel":"2.8.5-21.55.1","libexpat1":"2.8.5-21.55.1","libexpat1-32bit":"2.8.5-21.55.1","expat":"2.8.5-21.55.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4615-1.json"}}],"schema_version":"1.9.0"}